Cooler Master MasterCase H100 Case Review

A Closer Look: Exterior

The H100 features an all-black finish with a steel frame construction and measures at an extremely small 12.28 x 8.50 x 11.85 inches. The front of the H100 sports fine mesh ventilation for its large 200mm RGB fan, which is the only fan that provides airflow for the case.  The left side of the case is covered by a steel removable side panel that is attached via 2 thumbscrews at the back of the case.

The H100 other side is also covered by a steel panel that is attached via 4 screws located on inside of the case.

Looking to the back of the H100, you have your normal cutouts for the motherboard’s I/O and PSU as well as 2 expansion slots. Due to the H100 small form factor, the PSU cutout includes a protruding plate which secures the PSU to the case. This was likely done to provide you with additional clearance for a front radiator if you wish to install one and some additional cable management space. 

Flipping the case to its front reveals the H100’s I/O panel, which includes an HDD LED, reset button, Cooler Master logo power button, two USB 3.0 ports, and 3.5mm audio/microphone ports.

The top of the H100 includes some more mesh ventilation as well as a handle at the back. Thanks to the H100’s small size it’s a perfect case to bring to LAN parties and thanks to the handle, it would be super easy to carry around.

Moving to the bottom of the case, it consists of 4 rubberized feet in addition to some internal mounting points for a single 3.5” HDD and/or two 2.5” HDD/SDDs. If you are installing a 3.5” HDD, you will only have from for one additional 2.5” drive.

Pulling up the front panel and removing the pre-installed 200mm RGB fan reveal mounting point for a single 120/140/200mm fan and/or radiator.

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